Windows 8 introduces a tile-based interface for both PCs and tablets. It includes new features like simplified shutdown, narration assistance for blind users, snap apps to view multiple programs at once, file history backup, search from the desktop, dual monitor support, USB 3.0 compatibility, touch keyboard options, portable user profiles on USB drives, syncing settings across devices, included antivirus, keyboard shortcuts, digital magazines, screenshot capture, Xbox Music streaming, and an optimized Internet Explorer 10 browser.